Hello, I've been thinking about moving to a used RT or WDRT van from 2008 and up. Latest ones I've owned are through 2007 presently. I already am familiar with the 3.3 and 3.8. Unfortunately, they were kept until 2010, and now are gone. If I bought a 2011 + Grand Caravan of T&C, how are the 3.6 and 4.0 engines over time? I've heard about the cam phasing issue causing problems in the 3.6L, and being a costly repair. Also on the 3.6L, the issue with the oil filter housing. However I think they crack when people over torque the filter when doing an oil change. I've never had a problem with the 3.3 or 3.8 engines. 96 Grand, 2003 Grand & 2007 Short. All ran perfect. Are these newer engines good, bad or ugly? Thanks for any opinions.
IMHO the use of a timing belt is not a reason to rule out an engine. Timing chains fail as well. The key to an engine with a timing belt is to replace the belt at the recommended interval.
I have had 2 vehicles with the 4.0 engine. On both I had the timing belt replaced, the current 2008 T&C had the belt changed at 114011 miles, shortly after I bought it. The previous owner had not changed the timing belt as recommended so I had it done. (van was running fine when I had the timing belt changed) To me, this was just required maintenance like regular oil changes.
I love driving these T&C Limited with all the bells and whistles. They come with the 4.0 engine and I now have 124000 miles on this engine with no problems.
2011+ is 3.6 only. It was so good they didn't see a need to keep the older style engines. It had some flaws in the early years, but not many people with 2015+ having any major issues.
I rule out timing belts, especially on interference engines. I had a timing belt in a Neon (interference engine) which did not fail, and a timing belt in a 2.4 Cirrus (non-interference) which did fail. Yes, it's an maintenance item, but a complicated and costly one at that.
The 4.0L is a good engine, especially the I6 4.0L in my Jeep.
The V6 4.0L is good engine as well, but changing the timing belt, water pump, tensioner and such at the same time is additional maintenance that, if forgotten about and not budgeted for, can be devastating. Just an additional red flag to watch out for. The less red flags, the better, the way I see it. Doesn't mean I wouldn't own one.
I personally prefer the 4.0L over the 3.6L.
It has a better torque band that makes it far more livable for daily use, it's smoother, and it doesn't need to be revved to get moving.
Sure it has a timing belt, but just like other maintenance items, you do it at the required intervals and it's good to go for another 100k.
I personally prefer the 4.0L over the 3.6L.
It has a better torque band that makes it far more livable for daily use, it's smoother, and it doesn't need to be revved to get moving.
Sure it has a timing belt, but just like other maintenance items, you do it at the required intervals and it's good to go for another 100k.
Thanks for everyone's opinion on this. I'm a lot less concerned about these engines since reading your comments. Of course, it's a matter of keeping up the maintenance, and not beating on the vehicle when driving it.
I beat on our van's 4.0 engine frequently, and changed the timing belt after it had 140k miles on it. The belt still looked fairly new, and I know it was the original since we bought the van new off the lot. Love the low-end torque and top-end power.
I've had far more problems with chains than belts over the years, including on Nissans and VW/Audi engines. Chains stretch and cause problems over time, tensioners break, etc. Contrary to popular myth, belts don't really stretch but rather just break, but extremely rare prior to the scheduled maintenance interval. It's a ~$700 maintenance item once every 102k miles when other major maintenance is also required, and timing belts are very reliable. In my experience, when a chain fails it usually causes devastating engine damage from the shrapnel, and even if it doesn't, replacing a failed or slack/stretched timing chain is usually far more involved (i.e., more expensive) than a scheduled timing belt R&R.
But reasonable minds can disagree.
Society today prefers disposable items anyway, which is why we have "lifetime" transmission fluids and coolant, etc. Self-fulfilling prophesies....
If a chain stretches it's either been horribly maintained, has a binding valvetrain, or it's just a cheap chain. The chain can wear down just like the sprockets, but since it is a harder metal it will take a very long time to see it... unless horribly maintained. Maintenance is key, as always.
I had a 2003 with a 3.8L, I wish I had kept it ! It had 316,000 miles, and ran great.
My T&C, 2014 has the dreaded defective left (2,4,6,cyl) 3.6L problem that is still ongoing.
FCA WILL NOT COVER THE DEFECTIVE HEAD REPLACEMENT !
STAY AWAY FROM ALL 3.6L engines in all FCA vehicles !
If the timing chain setup is anything like the one used in Ford engines, the chain doesn't stretch, but the chain guides wear out. This causes too much slack in the chain which causes timing issues.
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